Well heretics is a vague term; it applies to anyone that doesn't confer with your own ideals. A good example of heretic was Joan of Arc just because she dressed as a man to join the army. Because of this she was labeled a heretic and burned at the stake.

KrayZee -- Stan Lee cameos are fine, I'm mostly referring to dumb jokes. For example, my main problem about the Justice League film is how Joss Whedon brought in stupid Marvel jokes that does not belong anywhere in the film.